That cold, or "cool" front that's been hanging out just to our north seems likely to drift south in the next day or two, and forecasters say that - along with a shot of low pressure from the southwest - hold our best chances for some significant rain tonight or tomorrow.  Here's the forecast for BWI.

The folks at Sterling say we could see up to three-quarters of an inch in some spots tomorrow. There are slighter chances for less than that this afternoon and evening, and for later in the week. But tomorrow looks like our best shot.

Whatever comes along, we need it badly. The airport saw a few drops last night - 0.01 inch. And I recorded another 0.02 on the WeatherDeck overnight, on top of the 0.21 inch that fell early Sunday. But the official measurement at BWI-Marshall still shows is off nearly 2 inches this month, on top of another 2-inch deficit in July.

A big shot of rain from whatever remains of Tropical Storm Ernesto by week's end would be very welcome. That's often how these late-summer droughts end.